package com.sky.controller.user;

import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

/**
 * @author zzw
 * @date 2025/6/7
 * @description C端-菜品浏览接口
 */
@Api(tags = "C端-菜品浏览接口")
@Slf4j
@RestController("userDishController")
@RequestMapping("/user/dish")
public class DishController {

    @Autowired
    private DishService dishService;

    @Autowired
    private RedisTemplate<String, Object> redisTemplate;

    @ApiOperation("根据分类id查询菜品")
    @GetMapping("/list")
    public Result<List<DishVO>> list(Long categoryId) {
        log.info("根据分类id查询菜品：{}", categoryId);

        // 菜品缓存key
        String key = "dish_" + categoryId;

        // 安全类型转换
        Object cached = redisTemplate.opsForValue().get(key);
        if (cached instanceof List) {
            List<DishVO> list = (List<DishVO>) cached;
            if (!list.isEmpty()) {
                return Result.success(list);
            }
        }

        List<DishVO> list = dishService.listDishWithFlavors(categoryId);
        redisTemplate.opsForValue().set(key, list);

        return Result.success(list);
    }
}
